Personas are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite Personas.

The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color and makes them easy to distinguish while beautifying the overall appearance of the interface. For Seamonkey & Flock. An essential. F...

AiOS lets you open various windows as sidebar panels, and quickly switch between them. So it put an end to the window chaos! In addition to bookmarks and history it opens dialogues such as downloads, add-ons and more in the sidebar.

— Open web pages saved with Internet Explorer or other browsers (MHT)— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)— Return to the original site you saved a page from, and more!

AutoPager automatically loads next pages when you reach the end of a page. It works on a ton of sites,Google,Yahoo..It works well with most other add-ons adblock plus, WOT and most of the greasemonkey scripts.You can also try AutoPagerLite.